[dpdk-dev] [PATCH 1/2] security: add anti replay window size

[Hemant Agrawal <hemant.agrawal@nxp.com>]

At present the ipsec xfrom is missing the important step
to configure the anti replay window size.
The newly added field will also help in to enable or disable
the anti replay checking, if available in offload by means
of non-zero or zero value.

Currently similar field is available in rte_ipsec lib for
software ipsec usage. The newly introduced filed can replace
that field as well eventually.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 lib/librte_security/rte_security.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/librte_security/rte_security.h b/lib/librte_security/rte_security.h
index aaafdfcd7..195ad5645 100644
--- a/lib/librte_security/rte_security.h
+++ b/lib/librte_security/rte_security.h
@@ -212,6 +212,10 @@ struct rte_security_ipsec_xform {
 	/**< Tunnel parameters, NULL for transport mode */
 	uint64_t esn_soft_limit;
 	/**< ESN for which the overflow event need to be raised */
+	uint32_t replay_win_sz;
+	/**< Anti replay window size to enable sequence replay attack handling.
+	 * replay checking is disabled if the window size is 0.
+	 */
 };
 
 /**
-- 
2.17.1